Spring-recoil grip.



HA C. TURNER.

SPRING RECOIL GRI Arme/mon min mi. 1, |915.

Patented J uly 3, 1917.

i UNITED sra n g commu ru `To all whom 'it may concern:

Be it` known that I, citizen of the United Angeles in the count sans i california, il new and useful Impr oil Grips, of whic specification. This invention ave invented ovements in h the followi inexpensive gripping device which may be spring recoil gripping mechanism, and has readily applied to a spring so as to cause particular relation to means adapted to be the parts of the spring to rub upon each applied to the leaves of sprin whereby other with considerable friction, during refriction between said leaves will be probound movements, thus preventing excessive duced upon the rebound of the spring and rebound or recoil action in the spring. whereb the said rebound or recoil is While theprinciple of theinvention ma be checkedY or retarded and all throw usually applied to springs of various kinds 1t is due thereto, absorbed and prevented. especiallyapplicable to leaf sprin of the It is an object of the invention to provide elliptic kind, and the inventlon as ,been t means adapted to grip the leaves of a spring illustrated in the accompanying drawing Z0 so as to increase their friction when m'oving in connection with a three-quarter elliptic in one direction, the said gripping action spring, and the features and details' of the 4being relieved when the leaves of the spring invention will now be more fully described are moving in the other direction. referencebeing had thereto. Y It isalso an object of the invention to pro- In the said drawing, 5 indicates the upper vide a spring recoil grip device which may quarter elliptic member of a spring and 6` be applied to leaf springs yin such a manner the lower semi-elliptic member thereof, the that when the springs are straightened out outer ends of said spring members being under the action of a load, the leaves of the pivotally connected by suitable links 7. The sprin will be free to move upon each other, inner end of the member 5 is shown as but wen the said springs are in the act of secured by a bracket 8 to the frame of a reboundin the said leaves will be cat lsed vehicle 9. The inner end of the member 6 to .rub tig tly against each other for relievis pivotally connected with said frame at 10. ing throw due to recoil. The lspring recoil grip device is adapted With these and other objects in view, the for use on either the upper or lower member invention comprises certain novel construcof the spring, the action being the same in tions, combinations and arrangements of each instance, though the position of the parts as will be hereinafter fully described grips on the upper member v'are usually inand claimed. verted with respect to the position of those In the accompanying drawing: on the `lower member.

40 Figure 1 is a' side elevation of a three- Each of the spring redoil grips is made up quarter elliptic spring applied to a vehicle, of a. shoe or movable gripping plate 11 and having the improved spring recoil grip usually formed with a transverse pivotbearmechanism mounted thereon. ing 12 extending across thecentral portion Fig. 2 is an enlarged detail side elevation thereof. The inner face of the said shoe of a portion ofthe said spring, showing one is usually recessed at 13`so as to receive a of the spring recoil grips thereon. friction piece or strip'14.

3 is a detail transverse taken upon the line 3 3 of Fig, 4 is a` fra view taken longitudinally posed spring leaves, one of therecoilgrips with the clip oreyew Fig.,5 is 1a top pla spring vrecoil"y spring.

Fig. 2

Specication of Letters Patent.

Application led February 1, 1915." Serial No.` 5,373.

'HARRY C. TURNER, a States, residing of Los Angeles and relates to improvements in sectional view gmentary detail sectional through superthe lower portion of being shown together hichholds it in place. n view of one of the grlps, removed. from the tras PATENT OFFICE. I

nNEB., or Los ANGELES, CALIFORNIA.

SPRING-macon. GRIP.

Patented July 3, 1917.

"Figa 6 is a fragmenta view through a through a recoil modified fo at Los certain grip, being shown. Spring The spring recoil grip mechanism form--` ng is a 111g the subyect matter of the present inven-"' -tion is designed to afford a simple and very The said 4 friction fiber, automobile frictionmaterial piece 14 may be made of brake lining or any other which will prevent the sh easily, when the parts are under a gripping strain. The said shoe or gripping platevllis carried by a pivot bolt 15 which passes` through the bearing 12 and at its ends asses through apertures in the ends of lin 16 and 17. The said shoe 11 is preferably inade a little wider than the leaves of the oe from slipping spring so that when the pivot bolt is drawn up snugly by means of its nut 18, the said links 16 and 17 will not bear against the edges of said leaves. The other ends of links 16 and 17 are apertured to engage/f apivot bolt 19 which extends through an eye 20-formcd upon a clip or small plate 21 which is secured to the outer leaf of the spring. Said clip 21 is usually fastenedto the said outer leaf by riveting as at 22 01' in any other desired manner, so that it' cannot slip upon the spring leaf. The eye 20 of the said clip 21 is also usually made a i little wider than' the leaf of the spring to pevent the links A16 and 17 from engaging t em.

The links 16 and'17 preferably extend in a slightly inclined relation to the planes of the spring lea-ves as clearly shown in the drawin the arrangement bein such that when t e leaves carrying the c ips 21 coil -or bow, the gripping plate or shoe 11 will gripping device having a transverse portion 23 extendin across the spring leaf to which the ip 2% is attached, and provided with coile portions at the sides as at 24, from which the ends 25 of the said springs extend one upon the outer face of each of the links 16, and 17. Bent portions 26 are also provided upon the end portions 25 which are adapted to project into. and engage apertures 27 and 28 formed .in the links 16 and 17. The coiled portions 24 of each spring extend around nd have a bear'- ing upon the head. of the lliolt 19 and the nut 30 applied to the other end thereof. The transverse portion 23 ihears upon the outer surface of the spring leaf'which carries the device, and the ends of the spring 25A will thus tend to move the links 16 and 17 toward the tapered portion of the spring,

whenever the leaves thereof fare straightened out under the actionof a load, and thus carry the brake shoe to a position where it will be ready to grip the spring leaves upon their rebound.

' In applying the grip mechanism to an l elliptic or a partially ellipticfspring, or to a spring of any other desired curvature, the

grips are usually secured to the leaves of the spring near the ends thereof, where the vsliding movement between adjacent leaves is greatest, 'so as-'to have the greatest movement retarding or brakin action upon the rebound of the spring.

he resiliency of lnot inter ered with in an the sprin as it straightens under a load, is

way

for as esprin Vthe shoe 11 is correspondingly advanc under the action of the spring ends 25, relieving the gripping action of the parte, but the recoil is Vretarded and modied to prevent excessive rebound, as the movement of the parts in a return direction causes the gripping action again. The device is especially useful when applied to vehicle springs, and 4'particularl to the springs of' automobiles ormotor rven vehicles.

While the sprin recoil grip may be applied to the ends o successivesprin leaves, as shown in Fig. 1, it will be un erstood v that a less nur'nber of grips may be applied the end portions of the spring leages `i ay be employed within the spirit and scope of the invent-ion.v Thus as shown in Fig. Grof the drawing the end of the spring leaf may be curled to form an attachin eye'29 for receiving the bolt 19 and holding the. grip device in proper position to secure the desired action therein.

It will be evident alsothat other minor details of construction may be altered if desired within the scope of the present invention. The arrangements should, however be such that as the leaves of thespring straighten under the wei ht of a load, the bolts '19 with the ends o the links carried thereby will be moved outwardly .along the spring, the arms 25, movingthe said links also in correspondence therewith so as to cause-the shoes 11 to take up any slack in the parts and thus always be ready to crowd the spring leaves tightly together upon the friction shoe 11 will be moved 'to grip the leaves when the spring is yielding under compression, all within theI spirit-and scope of this invention.

What is claimed is:

1. A recoil grip device, for springs hav- E ing arplurality of leaves, ada drawn ti htly about said leaves y the 1ongitudina movement of the leaves with re-v spect to each other for crowding them together upon movement.

. 2. A spring recoil grip comprising a fricto beV meente 8 tion memberanti ineensA for movingveach, member longitudinally of the sp1-ing fer causing the frietien member to grip the #L A. spring recoil grip edepted to ein infime e plurality of theflezwes of e spring and adapted to moveblyengege the face oi: e, leaf on one eide of the spring, ineens for em'iileeting 'the gvip Withn leef on the otiiei: eide of. e. spring whereby' the parte inegi? ine nausea-,l ino mrowd the lencv'ee together 20 temi their recoil :Lotion ami spring ineens f fm? nicvvinglthe grip1 intomgi'ipping per-Sittin.. 5. A. epiing recoil givin herring e, eline etiepted to engage, 'with a movable frietionel engagement one leef of a` spring, menne foi' pivotelly connecting the grip with another leef of the seid spring and e, spring. for eruitonfietieel-iy taking up my sie i in the nnovexnent of tiie gi p, whereby pente will always be in reeflineee te iin the spring end. reteiii ite reeoil.

n (L A reooil grin eompiising e ik.

f the swing to in nd nim ei, .iente oi it piing: io

iik i". A. Spring ree-oil inn:` engaging eiioe, .li is il ireiiitii, mezine for i "iii'tii tile signing meng connected. with. the

ee end .imi nl bearing ipe ereiiy the i 4. L netieeiiy ke pt in. g.

i'eonii grip eoniijnieing en. 'iitt gg; i "ed by the oi l titi Abe whipped.) eiwit Holi; i emi iiniie piwiteily iielii. by

and adapted to embrace the leaves of a. Spring between them, e shoe pivotalfly held between the swinging ende of said links and having friction menne adapted to engage sind prese n.pen. en mlifieent leef' of .the spring te be gripped, e( rip actuating spring having bearings upon the said pivot boltand Living e transverse portion engeging the Spring to be g1'ipped.,' seid aetnating sp1-ing also having emi portions connected with the seidjinks whereby the seid links will nor1nelly"keep the said'shoe in -spring engaging positiom 9. A mechanical means pivoted4 at one emi toeJ Spi-ing and having at the other end e friction glripping member for increasing enti. crontifoliing the :friction kbetween the Jeeves of the epi-ing.

epiing and. e :Frictionei member tending toy oni peiling into e poSi- HU whereby the f if retarded. :e t inplieing e 'pi'w eiioe eeiiiod thereby event the clip iii.

i eoif o ei" the recoil gz, i ehn, e gimp nrr l, oli-p on ite pivot nipping position.

one wey epiff. lg gripping device, eoiineetel with. one leef of a 'ifin piivetelly epi'ing anni inwing et grip member engaging another tile et-inet being euch that 4the in one direction oiiiiei (ii if.

.in teetiinoni' 'ii'fneif eet my heini, in presen HARRY C() 'Eel i", I have hereunto i? 'ivo Witnesses.

TURNER.

,in wie., i

it. PULL-imm 

